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README.zh.md
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README.zh.md
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# WebHooker
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GitHub webhook → Discord 分发服务。通过 Cloudflare Workers 接收 webhook 事件,应用过滤器,将格式化消息路由到 Discord 频道或子区。
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## 功能特性
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- **23 种事件格式化** — push、pull_request、issues、issue_comment、workflow_run、release、create、delete、star、fork、check_run、pull_request_review、pull_request_review_comment、commit_comment、deployment_status、member、label、milestone、discussion、discussion_comment、repository、code_scanning_alert、dependabot_alert(+ 通用回退)
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- HMAC-SHA256 签名验证(Web Crypto API)
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- 按事件类型、仓库、操作人、操作、分支(含 PR)、关键词(支持正则)过滤
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- 富 Discord embed:颜色编码、作者头像、字段、时间戳
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- 路由到频道或子区
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- GitHub App OAuth 用户授权(评论、合并、反应)
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- Durable Object 维持 Discord Gateway WebSocket 连接 + 频道缓存
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- Cloudflare KV 存储 token/状态/配置
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- 优雅降级(Discord 不可用时仅 webhook 模式)
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## 架构
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```text
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GitHub Webhook → Cloudflare Worker (Hono)
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├── POST /webhook → 验证 → 过滤 → 格式化 → DO (Discord Gateway) → Discord
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├── GET /auth/github → OAuth 流程
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├── POST /api/* → 用户操作(Bearer token 鉴权)
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└── GET /health → 健康检查
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```
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- **Cloudflare Worker** — HTTP 入口、签名验证、路由分发
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- **Durable Object (DiscordGateway)** — 持久 WebSocket 连接 Discord Gateway、频道缓存、消息发送(含重试)
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- **KV** — Token 存储(`token:{userId}`)、OAuth state(`state:{hex}`)、路由配置(`config:routes`)
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## 快速开始
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```bash
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npm install # 或 bun install
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cp .env.example .dev.vars # 填写本地开发密钥
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npx wrangler dev # 启动本地开发服务器
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```
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## 配置
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### 密钥(本地用 `.dev.vars`,生产用 Worker Secrets)
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| 变量 | 说明 |
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| ----------------------- | --------------------------- |
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| `GITHUB_WEBHOOK_SECRET` | GitHub webhook 密钥 |
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| `GITHUB_APP_ID` | GitHub App ID |
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| `GITHUB_PRIVATE_KEY` | App 私钥(PEM) |
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| `GITHUB_CLIENT_ID` | OAuth Client ID |
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| `GITHUB_CLIENT_SECRET` | OAuth Client Secret |
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| `DISCORD_TOKEN` | 机器人 token |
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| `DISCORD_CHANNEL_ID` | 默认目标频道 |
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| `BASE_URL` | 公网地址(用于 OAuth 回调) |
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### 路由配置
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路由存储在 KV(`config:routes`,JSON 格式)。首次启动使用 7 个默认路由。自定义时在 KV 中存储 JSON 数组:
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```json
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[
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{
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"id": "all-push",
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"name": "Push 事件",
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"enabled": true,
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"filters": [{ "type": "event", "match": "push" }],
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"target": { "channelId": "频道ID" }
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}
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]
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```
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完整语法示例见 `config.example.yaml`。
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### 过滤器类型
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| 类型 | 匹配内容 | 备注 |
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| --------- | ----------------------------------- | --------------------------------------------------------------- |
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| `event` | `push`、`pull_request`、`issues` 等 | GitHub 事件名 |
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| `repo` | `org/repo` 全名 | |
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| `actor` | 发送者登录名 | |
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| `action` | `opened`、`closed`、`published` 等 | |
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| `branch` | 分支名 | 支持 push、PR、create/delete、workflow_run、code_scanning_alert |
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| `keyword` | payload 中的文本 | 支持正则表达式;无效正则回退为子串匹配 |
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设置 `exclude: true` 可取反过滤器。
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## API
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### 健康检查
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- `GET /health` — 返回 `{"status": "ok"}`
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### OAuth
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- `GET /auth/github` — 发起 GitHub OAuth 授权(重定向到 GitHub)
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- `GET /auth/github/callback` — OAuth 回调(交换 code 为 token)
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- `DELETE /auth/token/:userId` — 撤销用户 token
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### 操作接口(需要 `Authorization: Bearer <token>` 头)
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- `POST /api/comment` — 创建 issue 评论
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- `POST /api/merge` — 合并 PR
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- `POST /api/react` — 添加 issue 反应
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## GitHub App 配置教程
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### 1. 创建 App
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1. 访问 <https://github.com/settings/apps/new>
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2. 填写信息:
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- **GitHub App name**:`WebHooker`(或自定义名称)
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- **Homepage URL**:你的域名
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- **Webhook URL**:`https://your-domain/webhook`
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- **Webhook secret**:生成并复制到 `GITHUB_WEBHOOK_SECRET`
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3. 设置权限:
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- **Repository permissions**:Contents (read)、Issues (write)、Pull requests (write)、Metadata (read)
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- **Organization permissions**:Members (read) — 如需要
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4. 订阅事件:Push、Pull request、Issues、Issue comment、Workflow run、Release、Create、Delete、Star、Fork、Check run、Pull request review、Pull request review comment、Commit comment、Deployment status、Member、Label、Milestone、Discussion、Discussion comment、Repository、Code scanning alert、Dependabot alert
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5. 生成私钥 → 将内容保存到 `GITHUB_PRIVATE_KEY` 环境变量
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### 2. 安装 App
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1. 创建后进入 App 设置页
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2. 点击 "Install App" → 选择组织/用户
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3. 选择要监控的仓库
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### 3. 配置 OAuth
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1. 进入 App → OAuth settings
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2. 设置 **Callback URL**:`https://your-domain/auth/github/callback`
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3. 复制 Client ID 和 Client Secret 到环境变量
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## 部署
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```bash
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# 在 Cloudflare 设置密钥
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npx wrangler secret put GITHUB_WEBHOOK_SECRET
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npx wrangler secret put GITHUB_APP_ID
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npx wrangler secret put GITHUB_PRIVATE_KEY
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npx wrangler secret put GITHUB_CLIENT_ID
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npx wrangler secret put GITHUB_CLIENT_SECRET
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npx wrangler secret put DISCORD_TOKEN
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npx wrangler secret put DISCORD_CHANNEL_ID
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# 创建 KV 命名空间
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npx wrangler kv namespace create KV
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# 更新 wrangler.jsonc 中的 KV namespace ID
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# 部署
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npx wrangler deploy
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```
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## 开发命令
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```bash
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npx wrangler dev # 本地开发服务器(Miniflare)
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npm run typecheck # 类型检查
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npm run lint # ESLint
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```
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## 支持的事件
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| 事件 | 格式化内容 |
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| ----------------------------- | ------------------------------------ |
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| `push` | 提交列表、分支、作者 |
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| `pull_request` | PR 标题、分支、差异统计 |
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| `issues` | Issue 标题、标签、指派人 |
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| `issue_comment` | 评论内容、Issue 引用 |
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| `workflow_run` | 工作流状态、结论、耗时 |
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| `release` | Tag、内容、资产 |
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| `create` / `delete` | 分支/tag 创建或删除 |
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| `star` | Star 数量、仓库 |
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| `fork` | Fork 来源 → 目标 |
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| `check_run` | 状态、结论、详情链接 |
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| `pull_request_review` | 审查状态、内容预览 |
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| `pull_request_review_comment` | 行内代码评论、文件路径、行号 |
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| `commit_comment` | Commit SHA、评论内容 |
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| `deployment_status` | 环境、状态、commit ref |
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| `member` | 协作者添加/移除 |
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| `label` | 标签名、颜色、描述 |
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| `milestone` | 进度条、open/closed 计数、截止日期 |
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| `discussion` | 讨论标题、分类、操作 |
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| `discussion_comment` | 评论内容、讨论引用 |
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| `repository` | 仓库重命名/转移详情 |
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| `code_scanning_alert` | 严重程度、规则 ID、文件路径 |
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| `dependabot_alert` | 严重程度、包名、受影响范围、修复版本 |
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## 许可证
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MIT
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